Vulnerability · Published Mar 25, 2021 · Assigned by redhat
CVE-2021-20216
High 7.5
In plain English
A high-severity uncontrolled resource consumption in privoxy. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.3%top 16.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in Privoxy in versions before 3.0.31. A memory leak that occurs when decompression fails unexpectedly may lead to a denial of service. The highest threat from this vulnerability is to system availability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | privoxy | 3.0.31-r0 | ALPINE-CVE-2021-20216 |
| Alpine:v3.21 | privoxy | 3.0.31-r0 | ALPINE-CVE-2021-20216 |
| Alpine:v3.22 | privoxy | 3.0.31-r0 | ALPINE-CVE-2021-20216 |
| Alpine:v3.23 | privoxy | 3.0.31-r0 | ALPINE-CVE-2021-20216 |
| Alpine:v3.24 | privoxy | 3.0.31-r0 | ALPINE-CVE-2021-20216 |
| Debian:12 | privoxy | 3.0.31-1 | DEBIAN-CVE-2021-20216 |
| Debian:13 | privoxy | 3.0.31-1 | DEBIAN-CVE-2021-20216 |
| Debian:14 | privoxy | 3.0.31-1 | DEBIAN-CVE-2021-20216 |
Affected products (as reported)
Weakness: CWE-400
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1923256 x_refsource_MISC
- https://www.openwall.com/lists/oss-security/2021/01/31/2 x_refsource_MISC
- https://www.privoxy.org/3.0.31/user-manual/whatsnew.html x_refsource_MISC
- GLSA-202107-16 vendor-advisory, x_refsource_GENTOO